Consolidated Statement Of Changes In Equity
| Concept | As at 2024-06-30 | 2024-01-01 to 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | 2024-01-01 to 2024-06-30 | As at 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-04-01 to 2024-06-30 | As at 2024-06-30 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-06-30 | 2023-01-01 to 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-04-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | As at 2023-06-30 | 2023-01-01 to 2023-06-30 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||
| Equity | 
                                                -24,392,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,028,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,848,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,028,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -1,445,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,462,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,646,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,670,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,646,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,141,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,638,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,606,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,440,165,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,925,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,123,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,363,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,363,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,949,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,066,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,949,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,526,853,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,463,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,180,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | ||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | 
                                                -668,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -668,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -668,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -326,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -744,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -744,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -300,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -744,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
| Other comprehensive income | — | 
                                                16,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                7,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                23,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                23,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Comprehensive income | — | 
                                                -652,440,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -652,440,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -668,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -318,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -721,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                23,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -721,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -277,097,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -744,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Transactions with owners | ||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | 
                                                19,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                9,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                113,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                113,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                56,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                56,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Share-based payment transactions | — | 
                                                15,537,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                15,537,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,537,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                23,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                23,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                23,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
| Total transactions with owners | — | 
                                                34,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -2,121,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                34,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                209,698,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,946,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                135,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                135,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,383,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                56,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — |